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<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
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<body>
  <h1>123</h1>
  <script>
    let map = new Map()
    let _map = new Map([['age', 19], ['gender', '男']])
    map[3] = 1
    map[4] = 1
    map[5] = 1
    map[6] = 1
    map['name'] = 'kkk'
    console.log(map, _map);

  </script>
</body>

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